feat: allow date_nanos dates in timestamp selection

[jehuty0shift]

Description

This change is enabling the selection of date_nanos date type for creating detectors in the plugin. The feature has been merged on the plugin side
opensearch-project/anomaly-detection#1238 and is being backported to 2.X :
opensearch-project/anomaly-detection#1249

The change add the date_nanos dataType and enable its selection as a date field.

I could test the change by cherry-picking this commit this code to 2.14 branch and testing OpenSearch Dashboard against a cluster with the patched anomaly-detection plugin (to pass validation on date_nanos).

The mapping of the timestamp field is the following

        "timestamp" : {
          "type" : "date_nanos",
          "format" : "epoch_millis||yyyy-MM-dd HH:mm:ss.SSS||yyyy-MM-dd HH:mm:ss.SSSSSS||yyyy-MM-dd HH:mm:ss.n"
        },

Attached are the screenshot showing the field appearing in the date fields listing and the final detector validated. The last screenshot shows an historical analysis working as intended.

Issues Resolved

No issues have been opened on this project.

Check List

• New functionality includes testing.
• All tests pass
• New functionality has been documented.
• Commits are signed per the DCO using --signoff

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[jehuty0shift]

I couldn't run all tests on my laptop (out of RAM), I'm ready to contribute to this PR by writing some unit test if needed, but i would need an example to replicate (i am not at all proficient in javascript/typescript). I don't know if documentation must be updated to reflect this change since it doesn't indicate the limitation in the first place.

[kaituo]

I couldn't run all tests on my laptop (out of RAM), I'm ready to contribute to this PR by writing some unit test if needed, but i would need an example to replicate (i am not at all proficient in javascript/typescript). I don't know if documentation must be updated to reflect this change since it doesn't indicate the limitation in the first place.

You can use https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/blob/main/public/pages/DefineDetector/components/Datasource/__tests__/IndexOption.test.tsx as an example. Once you finished, I can help run all tests in github CI.

[kaituo]

Please rebase from main as I fixed CI #798

[kaituo]

Can you list what manual tests you have done in the Description part?

[jehuty0shift]

I added some text and screenshot, let me know if you need something more.